The James Webb Space Telescope (JWST) and Voyager probes are highlighted among top deep-space exploration spacecraft. JWST, orbiting 1.5 million km from Earth at L2, uses its 6.5-meter mirror to observe distant galaxies in infrared wavelengths, detecting light from hundreds of millions of years after the Big Bang. Launched in December 2021, JWST expands upon Hubble's capabilities by observing infrared light from 0.6 to 28 microns, revealing the universe's earliest epochs.